Hard Disk Toolkit

The Mac's controller is SCSI ID 0, so you'll most likely need a jumper on ID 1 or ID2 as the Adapter/Drive's identifier on the chain.

If your HDD has an ID jumper installed, you've already got a bit of SCSI Voodoo going there.

Dunno about the rest, but that activity header definitely needs an LED lead!

Got a clearer pic or docs to scan? :?: